#pragma once
#include <stdio.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>


#define  SIZE   sizeof(struct node)

//学生结构体
typedef struct stu{
    int id;
    char name[10];
    int age;
    char sex;//m为男,f为女 
    double Cscore;//语文成绩
    double Mscore;//数学成绩
    double Escore;//英语成绩
    

}Stu;
//单链表
typedef struct node {
    struct stu     s;
    struct node*   pNext;
    
}Node;
typedef struct node*  PNode;